Excitability cultivation in high-energy UV region for Dy³⁺ in phosphate glass phosphors

Effective excitation region of Dy³⁺ has been expanded from low-energy ultraviolet (UVA) to high-energy ultraviolet (UVC) by the introduction of sensitizers into Dy³⁺ doped phosphate (NMBAP) glass phosphors. The cooperative effect of the sensitizers Ce³⁺ and Sb³⁺ generate remarkable enhancement on the fluorescence emission of Dy³⁺, attributing to the broadening of energy transmission channel to Dy³⁺. Diversified sensitization gain effects from tri-doped glass phosphors are discovered, providing a novel choice for the fluorescent optimization of Dy³⁺. Spectrum and image tracking confirm the Ce³⁺ and Sb³⁺ included Dy³⁺ doped NMBAP glass phosphors possess outstanding excitation response in whole UV region, which compensates the deficiencies in Dy³⁺ single-doped case. Intense fluorescence sensitization and delightful excitation extending in high-inclusive phosphate glass phosphors provide feasible routes for developing optoelectronic devices of light conversion, radiation detecting and laser illumination. © 2023 Elsevier Ltd and Techna Group S.r.l.